ssam_controller_start(9)

okay bestie, welcome to ssam_controller_start(9) from the Kernel API Manual — the group-chat explainer edition 💖

✨ NAME ✨

ssam_controller_start — Start the receiver and transmitter threads of the controller. That’s literally the whole vibe, and it ate 🎀

🌸 SYNOPSIS 🌸

int ssam_controller_start (struct ssam_controller *ctrl );

🎀 ARGUMENTS 🎀

• ctrl — The controller. That’s it. That’s the whole argument, and she’s iconic 💅

💅 NOTE 💅

When this function is called, the controller should be properly hooked up to the serdev core via struct serdev_device_ops. Please refer to ssam_controller_init for more details on controller initialization — that’s the lore you need before you press play 🦋

Important bestie moment: this function must be called with the main controller lock held (i.e. by calling ssam_controller_lock). No cap, do not skip this part 😭

🫶 SEE ALSO 🫶

The kernel file lore lives here: ./drivers/platform/surface/aggregator/controller.c ⭐

• ssh_seq_reset(9), ssh_seq_next(9), ssh_rqid_reset(9), ssh_rqid_next(9), ssam_event_matches_notifier(9), ssam_nfblk_call_chain(9), ssam_nfblk_insert(9), ssam_nfblk_find(9), ssam_nfblk_remove(9)
• ssam_nf_head_init(9), ssam_nf_head_destroy(9), struct ssam_nf_refcount_key(9), struct ssam_nf_refcount_entry(9), ssam_nf_refcount_inc(9), ssam_nf_refcount_dec(9), ssam_nf_refcount_dec_free(9), ssam_nf_refcount_empty(9), ssam_nf_call(9), ssam_nf_init(9), ssam_nf_destroy(9)
• ssam_event_item_cache_init(9), ssam_event_item_cache_destroy(9), ssam_event_item_free(9), ssam_event_item_alloc(9), ssam_event_queue_push(9), ssam_event_queue_pop(9), ssam_event_queue_is_empty(9), ssam_cplt_get_event_queue(9), ssam_cplt_submit(9), ssam_cplt_submit_event(9), ssam_cplt_flush(9)
• ssam_event_queue_init(9), ssam_cplt_init(9), ssam_cplt_destroy(9), ssam_controller_device(9), ssam_controller_get(9), ssam_controller_put(9), ssam_controller_statelock(9), ssam_controller_stateunlock(9), ssam_controller_lock(9), ssam_controller_caps_load_from_acpi(9)
• ssam_controller_caps_load_from_of(9), ssam_controller_caps_load(9), ssam_controller_init(9), ssam_controller_shutdown(9), ssam_controller_destroy(9), ssam_controller_suspend(9), ssam_controller_resume(9), ssam_request_write_data(9), ssam_request_sync_alloc(9), ssam_request_sync_free(9)
• ssam_request_sync_init(9), ssam_request_sync_submit(9), ssam_request_do_sync(9), ssam_request_do_sync_with_buffer(9), struct ssh_notification_params(9), ssam_ssh_event_enable(9), ssam_ssh_event_disable(9), ssam_get_firmware_version(9), ssam_ctrl_notif_display_off(9), ssam_ctrl_notif_display_on(9)
• ssam_ctrl_notif_d0_exit(9), ssam_ctrl_notif_d0_entry(9), ssam_nf_refcount_enable(9), ssam_nf_refcount_disable_free(9), ssam_notifier_register(9), __ssam_notifier_unregister(9), ssam_controller_event_enable(9), ssam_controller_event_disable(9), ssam_notifier_disable_registered(9)
• ssam_notifier_restore_registered(9), ssam_notifier_is_empty(9), ssam_notifier_unregister_all(9), ssam_irq_setup(9), ssam_irq_free(9), ssam_irq_arm_for_wakeup(9), ssam_irq_disarm_wakeup(9)

byeee 💖 this page’s footer tea is source/version ./drivers/platform/surface/agg... and date October 2026 — slay, periodt 🌈✨